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| PREPARATION OF MULTI-WALLED CARBON NANOTUBES USING NiO CATALYST SYNTHESIZED BY HYDROTHERMAL METHOD | |
| 作者姓名： | Y.J. Zhu Y.L. Chen X.M. Xue Y.M. Chen C.Y. Wu T.C. Kuang S.H. Li and H.Y. Zhang |
| 作者单位： | Y.J. Zhu，Y.L. Chen，X.M. Xue，Y.M. Chen，C.Y. Wu，T.C. Kuang，S.H. Li，and H.Y. Zhang 1) Department of Applied Physics，Guangdong University of Technology，Guangzhou 510090，China 2) Center of Analysis Testing，Guangdong University of Technology，Guangzhou 510090，China 3) Faculty of Material and Energy，Guangdong University of Technology，Guangzhou 510090，China |
| 摘 要： | The Ni(OH)2/SiO2 binary colloid was prepared using Ni(NO3)2.6H2O and (C2H5O)4SiO4 as starting materials and was used to form NiO/SiO2. composite powder by hydrothermal method and desiccant method in open air respectively. Multi-walled carbon nanotubes (MWCNTs) were synthesized respectively by chemical vapor deposition using the NiO/SiO2 catalyst prepared by different methods. The phase and morphology of the catalysts and the morphology, output yield and purity of MWCNTs were compared by XRD, TEM and SEM. The results show that the catalyst powder prepared by hydrothermal method, compared with that by desiccant method, is smaller, better dispersion and has stronger catalytic activity. Pure MWCNTs with smaller tube diameter and narrow range could be obtained at a high yield using that NiO/SiO2 powder prepared by hydrothermal method as catalyst. |
| 收稿时间： | 2002-11-25 |
PREPARATION OF MULTI-WALLED CARBON NANOTUBES USING NiO CATALYST SYNTHESIZED BY HYDROTHERMAL METHOD |
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| Y.J. Zhu,Y.L. Chen,X.M. Xue,Y.M. Chen,C.Y. Wu,T.C. Kuang,S.H. Li,and H.Y. Zhang .PREPARATION OF MULTI-WALLED CARBON NANOTUBES USING NiO CATALYST SYNTHESIZED BY HYDROTHERMAL METHOD[J].Acta Metallurgica Sinica(English Letters),2003,16(5):416-420. | |
| Authors: | YJZhu YLChen XMXue YMChen CYWu TCKuang SHLi HYZhang |
| Affiliation: | 1. Department of Applied Physics, Guangdong University of Technology, Guangzhou 510090, China 2. Center of Analysis Testing, Guangdong University of Technology, Guangzhou 510090, China 3. Faculty of Material and Energy, Guangdong University of Technology, Guangzhou 510090, China |
| Abstract: | The Ni(OH)2/SiO2 binary colloid was prepared using Ni(NO3)2.6H2O and (C2H5O)4SiO4 as starting materials and was used to form NiO/SiO2. composite powder by hydrothermal method and desiccant method in open air respectively. Multi-walled carbon nanotubes (MWCNTs) were synthesized respectively by chemical vapor deposition using the NiO/SiO2 catalyst prepared by different methods. The phase and morphology of the catalysts and the morphology, output yield and purity of MWCNTs were compared by XRD, TEM and SEM. The results show that the catalyst powder prepared by hydrothermal method, compared with that by desiccant method, is smaller, better dispersion and has stronger catalytic activity. Pure MWCNTs with smaller tube diameter and narrow range could be obtained at a high yield using that NiO/SiO2 powder prepared by hydrothermal method as catalyst. |
| Keywords: | hydrothermal method dry method at atmosphere carbon nan- otube catalytic pyrolysis |
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